Question
click below
click below
Question
Normal Size Small Size show me how
ab ch3 stack3
Question | Answer |
---|---|
power supply | power supply.Also known as a power supply unit (PSU). A box inside a computer case that supplies power to the motherboard and other installed devices. |
power supply tester | power supply tester.Used to measure the output of each connector coming from the power supply. |
RFI | RFI.EMI in the radio frequency range. |
rectifier | rectifier.An electrical device that converts AC to DC. A PC power supply contains a rectifier. |
resistor | resistor.An electronic device that resists or opposes the flow of electricity. A resistor can be used to reduce the amount of electricity being supplied to an electronic component. |
riser card | riser cardA card that plugs into a motherboard and allows for expansion cards to be mounted parallel to the motherboard. Expansion cards are plugged into slots on the riser card. |
soft power | soft power.Another term for a soft switch. |
soft switch | soft switch.A feature on an ATX or BTX system that allows an OS to power down the system and allows for activity such as a keystroke or network activity to power up the system. Also called soft power. |
spikes | spikes.emporary surges in voltage, which can damage electrical components. Also called swells. |
static electricity | static electricity.An electrical charge at rest. Also known as electrostatic discharge (ESD). |
surge protector or surge suppressor | surge protector or surge suppressor.A device or power strip designed to protect electronic equipment from power surges and spikes. |
tower case | tower case.The largest type of personal computer case. Tower cases stand vertically and can be as high as two feet tall. They have more drive bays and are a good choice for computer users who anticipate making significant upgrades. |
transformer | transformer.A device that changes the ratio of current to voltage. A computer power supply is basically a transformer and a rectifier. |
transistor | transistor.An electronic device that can regulate electricity and act as a logical gate or switch for an electrical signal. |
UPS | UPS.A device designed to provide a backup power supply during a power failure. Basically, a UPS is a battery backup system with an ultra-fast sensing device. |
volt | volt.A measure of potential difference in an electrical circuit. A computer ATX power supply usually provides five separate voltages: +12 V, -12 V, +5 V, -5 V, and +3.3 V. |
voltage selector switch | voltage selector switch.A power supply might have a voltage selector switch on the back. Often, the voltage selector switch on the power supply can be set to 230 V or 115 V. When in the United States, set the switch to 115 V. |
watt | watt.The unit used to measure power. A typical computer may use a power supply that provides 200 W. |